SRAM XX Eagle T-Type Direct Mount Chainring — 36T
Top-tier T-Type transmission. Dual-spoke precision. 34T or 36T.
The SRAM XX Eagle T-Type Direct Mount Chainring sits at the pinnacle of SRAM's 12-speed Eagle mountain drivetrain — the top-tier choice for riders running the full T-Type Transmission system. Machined from lightweight aluminium with a distinctive dual-spoke profile, it bolts directly onto SRAM Transmission cranks via an 8-bolt interface, eliminating the spider entirely for a cleaner, stiffer power transfer path. The 3mm Boost offset positions the chain perfectly for both standard 135/142mm and Boost 141/148mm rear axle spacing, and every ring ships with the mounting hardware included.
The T-Type Transmission system is SRAM's fully integrated approach to 1x shifting — the chainring, chain, cassette, derailleur, and crankset all engineered together for chain retention and shifting performance that conventional drivetrains can't match. Upgrading the chainring alone (for example, moving to a larger or smaller tooth count to adjust gearing) is straightforward as long as you stay within the T-Type ecosystem: XX chainring requires a T-Type chain. Standard Eagle chains are not compatible and will cause shifting issues and premature wear.
T-Type compatibility — important. This chainring is engineered exclusively for SRAM T-Type (Transmission) drivetrains. It requires a T-Type chain (XX, X0, or GX T-Type) and mounts only to SRAM 8-bolt Direct Mount Transmission cranks. It is not compatible with traditional Eagle cranks, non-SRAM cranks, or standard Eagle chains. If you are unsure whether your crankset has the 8-bolt T-Type interface, check the crank arm — it will be marked "T-Type" or "Transmission".
What makes this worth it
XX Eagle T-Type — Top Tier
The XX designation marks SRAM's highest-performance mountain drivetrain. Every component in the XX T-Type line is engineered for riders who demand the best shift quality, lowest weight, and longest service life.
8-Bolt Direct Mount — No Spider
The 8-bolt direct mount interface bolts straight to the SRAM Transmission crank arm — no spider, no adapter, no flex. The result is a stiffer, lighter assembly than any traditional spider-mounted chainring setup.
Dual-Spoke Design
The distinctive open dual-spoke pattern is both a structural and aesthetic choice — material is removed from low-stress zones to reduce weight while maintaining ring stiffness where the chain engages the teeth.
3mm Boost Offset
The 3mm offset aligns the chainline correctly for both standard 135/142mm rear axle spacing and Boost 141/148mm spacing. One ring works across the full range of modern trail and enduro frame standards.
Lightweight Aluminium
Machined from high-strength aluminium alloy and anodised black for corrosion resistance. At 83g (34T), it's a genuine performance weight while still offering the durability expected from an aluminium ring in technical terrain.
Mounting Hardware Included
All 8 mounting bolts are included in the box. No need to source hardware separately — bolt it on and ride. Torque to SRAM's specification (typically 8–10 Nm) with a standard T25 Torx key.
Specifications
| Brand | SRAM |
| Series | XX Eagle T-Type (Transmission) |
| Tooth Count | 34T or 36T (select above) |
| Mount Type | SRAM 8-Bolt Direct Mount |
| Offset | 3mm (Boost) |
| Speeds | 12-speed (T-Type only) |
| Shape | Round |
| Material | Aluminium, anodised Black |
| Weight | 83g (34T) / approx. 91g (36T) |
| Hub / Axle Compatibility | 135/142mm MTB, 141/148mm Boost |
| Chain Compatibility | SRAM T-Type chains only (XX, X0, GX T-Type) |
| Hardware | 8 mounting bolts included |
| Crank Compatibility | SRAM 8-bolt T-Type / Transmission cranks only |
| Part Numbers | 34T: 11.6218.054.008 | 36T: 11.6218.054.009 |
(11.6218.054.XX)
XX Eagle T-Type — Top Tier
The XX designation marks SRAM's highest-performance mountain drivetrain. Every component in the XX T-Type line is engineered for riders who demand the best shift quality, lowest weight, and longest service life.
8-Bolt Direct Mount — No Spider
The 8-bolt direct mount interface bolts straight to the SRAM Transmission crank arm — no spider, no adapter, no flex. The result is a stiffer, lighter assembly than any traditional spider-mounted chainring setup.
Dual-Spoke Design
The distinctive open dual-spoke pattern is both a structural and aesthetic choice — material is removed from low-stress zones to reduce weight while maintaining ring stiffness where the chain engages the teeth.
3mm Boost Offset
The 3mm offset aligns the chainline correctly for both standard 135/142mm rear axle spacing and Boost 141/148mm spacing. One ring works across the full range of modern trail and enduro frame standards.
Lightweight Aluminium
Machined from high-strength aluminium alloy and anodised black for corrosion resistance. At 83g (34T), it's a genuine performance weight while still offering the durability expected from an aluminium ring in technical terrain.
Mounting Hardware Included
All 8 mounting bolts are included in the box. No need to source hardware separately — bolt it on and ride. Torque to SRAM's specification (typically 8–10 Nm) with a standard T25 Torx key.
| Brand | SRAM |
| Series | XX Eagle T-Type (Transmission) |
| Tooth Count | 34T or 36T (select above) |
| Mount Type | SRAM 8-Bolt Direct Mount |
| Offset | 3mm (Boost) |
| Speeds | 12-speed (T-Type only) |
| Shape | Round |
| Material | Aluminium, anodised Black |
| Weight | 83g (34T) / approx. 91g (36T) |
| Hub / Axle Compatibility | 135/142mm MTB, 141/148mm Boost |
| Chain Compatibility | SRAM T-Type chains only (XX, X0, GX T-Type) |
| Hardware | 8 mounting bolts included |
| Crank Compatibility | SRAM 8-bolt T-Type / Transmission cranks only |
| Part Numbers | 34T: 11.6218.054.008 | 36T: 11.6218.054.009 |
| SKU | 11.6218.054.XX |
| Brand | SRAM |
| Shipping Weight | 0.1000kg |
